Cometic GM Gen-V/VI Big Block V8 .051in MLS Cylinder Head Gasket - 4.320in Bore

This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed layers of stainless steel, featuring an outer layer coated with Viton rubber. With a compressed operating thickness of 0.051 inches and a bore size of 4.320 inches, it’s designed to handle the demands of GM Gen-V/VI Big Block V8 engines, especially those with higher output. These gaskets are ideal for sealing aluminum heads to either aluminum or cast iron blocks, effectively managing the shearing forces that can occur between different metal types.

The multi-layer stainless steel construction provides increased strength and the ability to rebound, while also resisting corrosion. The Viton coating on the outer layers is a heat-resistant material capable of withstanding temperatures up to 482 degrees Fahrenheit, making it suitable for harsh sealing environments and various surface finishes. The center shim layer is uncoated stainless steel, allowing for adjustments in thickness to meet specific requirements. Because they are designed for maximum sealing performance, these MLS gaskets typically do not require additional sealants.

This gasket fits a wide range of Chevrolet and GMC trucks and vans from the early to mid-1990s, including models like the Chevrolet C1500, GMC C3500, and Chevrolet K2500 Suburban. It's a solid option when rebuilding or replacing head gaskets on these V8 engines.